EP 0434845 A4 19911218 - STRUCTURE FOR LIQUID-COOLING OF MOTOR
Title (en)
STRUCTURE FOR LIQUID-COOLING OF MOTOR
Publication
Application
Priority
JP 18474589 A 19890719
Abstract (en)
[origin: WO9101587A1] For a recent motor requiring larger output and torque, liquid-cooling is preferable for increasing cooling efficiency and, because of simplicity of construction, the so-called jacket system is employed for cooling the stator (17). The conventional jacket system, however, lowers cooling efficiency on account of a cylinder member interposed between the stator (17) and the jacket (18). In this invention, therefore, an adhesive is applied to the entire surface or a partial annular surface area (Z1) of each of laminations (16) composing the stator (17) and, with the laminations assembled, cooling liquid is prevented from entering the inner periphery of the stator (17) and thus a liquid passage (24) of the jacket (18) can be adapted to directly face the outer periphery of the stator (17).
IPC 1-7
IPC 8 full level
H02K 5/20 (2006.01); H02K 1/16 (2006.01); H02K 9/19 (2006.01)
CPC (source: EP KR US)
H02K 1/16 (2013.01 - EP); H02K 1/185 (2013.01 - KR); H02K 1/20 (2013.01 - KR); H02K 5/203 (2021.01 - EP KR US); H02K 9/19 (2013.01 - KR)
Citation (search report)
- [X] FR 487862 A 19180802 - SUBMERSIBLE & J L MOTORS LIMITED [GB]
- [X] FR 1163764 A 19580930 - NAPIER & SON LTD
- [Y] EP 0067704 A2 19821222 - MATHER & PLATT LTD [GB]
- [Y] US 3648085 A 19720307 - FUJII ROBERT L
- [A] US 4745314 A 19880517 - NAKANO JIRO [JP]
- [A] US 4691131 A 19870901 - NAKANO JIRO [JP]
- See references of WO 9101587A1
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
WO 9101587 A1 19910207; EP 0434845 A1 19910703; EP 0434845 A4 19911218; JP H0352540 A 19910306; JP H0810975 B2 19960131; KR 920702061 A 19920812
DOCDB simple family (application)
JP 9000865 W 19900706; EP 90910174 A 19900706; JP 18474589 A 19890719; KR 910700245 A 19910305